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Explore the role of the Tigris and Euphrates rivers in the growth of civilizations in Mesopotamia. Learn how new farming techniques led to the development of cities and the formation of the world's first civilizations.
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Chapter 3 Section 1- Geography of the Fertile Crescent Mesopotamia and the Fertile Crescent
Mesopotamia Preview Mesopotamia: An Overview
Section 1-Geography of the Fertile Crescent • The Big Idea • The valleys of the Tigris and Euphrates rivers were the site of the world’s first civilizations. • Main Ideas • The rivers of Southwest Asia supported the growth of civilizations. • New farming techniques led to the growth of cities.
Main Idea 1: The rivers of Southwest Asia supported the growth of civilizations. • The Tigris and Euphrates rivers are the most important physical features of the region known as Mesopotamia. • Farm settlements in Mesopotamia eventually developed into civilizations.
Land Between Two Rivers • Mesopotamia means “between the rivers” in Greek. • Mesopotamia is part of a larger area of rich farmland called the Fertile Crescent. • Mesopotamia was divided into two regions in ancient times: northern and southern Mesopotamia.
Rise of Civilizations • Annual floods on the Tigris and Euphrates rivers brought silt that made the land ideal for farming. • Silt is a mixture of rich soil and tiny rocks. • Plentiful food led to population growth and the formation of villages. • Villages later developed into the world’s first civilizations. • Early farmers grew many different crops. • The areas MOST important crops were wheat and barley. • Other crops included: beans, onions, lettuce, cucumbers, spice plants, date palm, apple and pomegranate trees.
Main Idea 2:New farming techniques led to the growth of cities. • Farmers used irrigation and canalsas a way to control river flow. • Increased amounts of food led to surpluses, which meant that fewer people needed to farm. • As a result, new occupations developed.
Controlling Water The water levels of the Tigris and Euphrates would rise or fall, depending on the amount of rainfall. Irrigation and canals helped solve flooding and drought problems. Irrigation A way of supplying water to an area of land Canals Human-made waterways Farmers also built up the banks of the rivers to hold back the floodwaters.
Food Surpluses and Effects • Irrigation increased the amount of food farmers produced. • This created a food surplus, or more food than they needed. • Fewer people needed to farm, so they took on other roles and jobs. • When workers specialize in a particular task, a division of labor is created. • Large projects were undertaken, which led to the need for structure andrules. • Settlements grew in size, creating cities between 4000 and 3000 B.C.
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